Mercurial/Bazaar: Make commit work on windows

Do not keep an open file around when passing the file name to the
editor. The editor won't be able to save on windows since the file
is locked.

Task-number: QTCREATORBUG-5972
Change-Id: Ib424c76d2e3e57d43fdc1e1c222dbeb148669038
Reviewed-by: Hugues Delorme <delorme.hugues@fougsys.fr>

src/plugins/mercurial/mercurialplugin.cpp

@@ -68,8 +68,6 @@
 #include <QDir>
 #include <QDialog>
 #include <QFileDialog>
-#include <QTemporaryFile>
-
 
 using namespace Mercurial::Internal;
 using namespace Mercurial;
@@ -122,11 +120,11 @@ MercurialPlugin::MercurialPlugin() :
         m_client(0),
         core(0),
         m_commandLocator(0),
-        changeLog(0),
         m_addAction(0),
         m_deleteAction(0),
         m_createRepositoryAction(0),
-        m_menuAction(0)
+        m_menuAction(0),
+        m_submitActionTriggered(false)
 {
     m_instance = this;
 }
@@ -138,8 +136,6 @@ MercurialPlugin::~MercurialPlugin()
         m_client = 0;
     }
 
-    deleteCommitLog();
-
     m_instance = 0;
 }
 
@@ -553,7 +549,6 @@ void MercurialPlugin::commit()
 
 void MercurialPlugin::showCommitWidget(const QList<VcsBaseClient::StatusItem> &status)
 {
-
     VcsBaseOutputWindow *outputWindow = VcsBaseOutputWindow::instance();
     //Once we receive our data release the connection so it can be reused elsewhere
     disconnect(m_client, SIGNAL(parsedStatus(QList<VcsBase::VcsBaseClient::StatusItem>)),
@@ -564,20 +559,16 @@ void MercurialPlugin::showCommitWidget(const QList<VcsBaseClient::StatusItem> &s
         return;
     }
 
-    deleteCommitLog();
-
-    // Open commit log
-    QString changeLogPattern = QDir::tempPath();
-    if (!changeLogPattern.endsWith(QLatin1Char('/')))
-        changeLogPattern += QLatin1Char('/');
-    changeLogPattern += QLatin1String("qtcreator-hg-XXXXXX.msg");
-    changeLog = new QTemporaryFile(changeLogPattern,  this);
-    if (!changeLog->open()) {
-        outputWindow->appendError(tr("Unable to generate a temporary file for the commit editor."));
+    // Start new temp file
+    Utils::TempFileSaver saver;
+    // Keep the file alive, else it removes self and forgets its name
+    saver.setAutoRemove(false);
+    if (!saver.finalize()) {
+        VcsBase::VcsBaseOutputWindow::instance()->append(saver.errorString());
         return;
     }
 
-    Core::IEditor *editor = Core::EditorManager::openEditor(changeLog->fileName(),
+    Core::IEditor *editor = Core::EditorManager::openEditor(saver.fileName(),
                                                             Constants::COMMIT_ID,
                                                             Core::EditorManager::ModeSwitch);
     if (!editor) {
@@ -610,17 +601,13 @@ void MercurialPlugin::diffFromEditorSelected(const QStringList &files)
 
 void MercurialPlugin::commitFromEditor()
 {
-    if (!changeLog)
-        return;
-
-    //use the same functionality than if the user closes the file without completing the commit
-    core->editorManager()->closeEditors(core->editorManager()->editorsForFileName(changeLog->fileName()));
+    // Close the submit editor
+    m_submitActionTriggered = true;
+    Core::ICore::editorManager()->closeEditor();
 }
 
 bool MercurialPlugin::submitEditorAboutToClose(VcsBaseSubmitEditor *submitEditor)
 {
-    if (!changeLog)
-        return true;
     Core::IDocument *editorFile = submitEditor->document();
     CommitEditor *commitEditor = qobject_cast<CommitEditor *>(submitEditor);
     if (!editorFile || !commitEditor)
@@ -630,13 +617,13 @@ bool MercurialPlugin::submitEditorAboutToClose(VcsBaseSubmitEditor *submitEditor
     const VcsBaseSubmitEditor::PromptSubmitResult response =
             commitEditor->promptSubmit(tr("Close Commit Editor"), tr("Do you want to commit the changes?"),
                                        tr("Message check failed. Do you want to proceed?"),
-                                       &dummyPrompt, dummyPrompt);
+                                       &dummyPrompt, !m_submitActionTriggered);
+    m_submitActionTriggered = false;
 
     switch (response) {
     case VcsBaseSubmitEditor::SubmitCanceled:
         return false;
     case VcsBaseSubmitEditor::SubmitDiscarded:
-        deleteCommitLog();
         return true;
     default:
         break;
@@ -657,14 +644,6 @@ bool MercurialPlugin::submitEditorAboutToClose(VcsBaseSubmitEditor *submitEditor
     return true;
 }
 
-void MercurialPlugin::deleteCommitLog()
-{
-    if (changeLog) {
-        delete changeLog;
-        changeLog = 0;
-    }
-}
-
 void MercurialPlugin::createRepositoryManagementActions(const Core::Context &context)
 {
     //TODO create menu for these options